123646106045 has 48 divisors (see below), whose sum is σ = 189444791424. Its totient is φ = 75814358400.

The previous prime is 123646106033. The next prime is 123646106081. The reversal of 123646106045 is 540601646321.

It is not a de Polignac number, because 123646106045 - 2⁶ = 123646105981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19022 + ... + 497648.

It is an arithmetic number, because the mean of its divisors is an integer number (3946766488).

Almost surely, 2^123646106045 is an apocalyptic number.

It is an amenable number.

123646106045 is a deficient number, since it is larger than the sum of its proper divisors (65798685379).

123646106045 is a wasteful number, since it uses less digits than its factorization.

123646106045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478722 (or 478711 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 123646106045 in words is "one hundred twenty-three billion, six hundred forty-six million, one hundred six thousand, forty-five".